Prepare for the WGU Secure Software Design (D487, KEO1) Exam exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.
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During fuzz testing of the new product, random values were entered into input elements Search requests were sent to the correct API endpoint but many of them failed on execution due to type mismatches.
How should existing security controls be adjusted to prevent this in the future?
Validating user input data before it is processed by the application is a fundamental security control in software design. This process, known as input validation, ensures that only properly formed data is entering the workflow of the application, thereby preventing many types of attacks, including type mismatches as mentioned in the question. By validating input data, the application can reject any requests that contain unexpected or malicious data, reducing the risk of security vulnerabilities and ensuring the integrity of the system.
Secure SDLC practices emphasize the importance of integrating security activities, such as creating security and functional requirements, code reviews, security testing, architectural analysis, and risk assessment, into the existing development workflow1.
A Secure Software Development Life Cycle (SSDLC) ensures that security is considered at every phase of the development process, from planning and design to coding, testing, deploying, and maintaining the software2.
After being notified of a vulnerability in the company's online payment system, the Product Security Incident Response Team (PSIRT) was unable to recreate the vulnerability in a testing lab.
What is the response team's next step?
Senior IT staff has determined that a new product will be hosted in the cloud and will support web and mobile users. Developers will need to deliver secure REST services. Android and IOS mobile apps. and a web application. Developers are currently determining how to deliver each part of the overall product.
Which phase of the software development lifecycle (SDLC) is being described?
The phase being described is the Design phase of the SDLC. During this phase, developers and IT staff determine the architectural and operational details of the product, which includes decisions on how to deliver various components such as secure REST services, mobile apps, and web applications. The Design phase is crucial for setting the foundation for the development work that will follow, ensuring that the product will be secure, scalable, and maintainable.
Features have been developed and fully tested, the production environment has been created, and leadership has approved the release of the new product. Technicians have scheduled a time and date to make the product available to customers.
Which phase of the software development lifecycle (SDLC) is being described?
The phase being described is the Deployment phase of the SDLC. This phase involves making the software available for use by customers after it has been developed, tested, and approved for release. It includes the installation of the software in the production environment, ensuring that all features are operational as intended, and obtaining formal approval from leadership to proceed with making the product available to end-users. The deployment phase is critical as it transitions the software from a development setting to a real-world operational environment.
SDLC Deployment Phase -- A Step by Step Guide1
Understanding the SDLC: Software Development Lifecycle Explained2
Which category classifies identified threats that do not have defenses in place and expose the application to exploits?
The category that classifies identified threats with no defenses in place, exposing the application to exploits, is Unmitigated Threats. This term refers to vulnerabilities for which no countermeasures or mitigations have been implemented. These threats are critical because they represent actual weaknesses that attackers can exploit. In the context of secure software design, it's essential to identify these threats early in the SDLC to ensure that appropriate security controls can be designed and implemented to protect against them.
Taxonomy of Cyber Threats to Application Security and Applicable Defenses1.
OWASP Foundation's Threat Modeling Process2.
Mitigating Persistent Application Security Threats3.
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